We are fascinated by the hybrid rocket engine which [Ben Krasnow] built and tested in his shop. It is actually using a hollow cylinder of acrylic as the fuel, with gaseous oxygen as an oxidizer.

A standard 250 cubic foot cylinder pressurized to 2,500 PSIG can become a rocket attaining a speed of over 30 miles per hour in a fraction of a second after venting from the broken cylinder connection ...

That credit goes to Moto Guzzi in the 1930s. Triumph popularized its cylinders with the iconic Trident and its twin, the BSA Rocket 3. However, Honda and Kawasaki shrunk the three-cylinder engine ...

L3Harris' Aerojet Rocketdyne broke ground on a major expansion of solid rocket motor production facilities in Camden, Arkansas, on Thursday. (Aerojet Rocketdyne) The construction of four new solid ...

four valves per cylinder Compression Ratio While its 163 lb-ft gut-wrenching torque is a hook solid enough, the Triumph Rocket 3 221 Special Edition has a few more tricks up its sleeve.